Grimes, Elon Musk romance on the rocks before birth of their son, sources say

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Grimes has been experiencing "ups and downs" in her romance with Elon Musk.

The 32-year-old singer recently gave birth to the couple's first child, a son named X Æ A-12, but sources have said their romance could be on the rocks as they were reportedly "on and off" throughout Grimes' pregnancy.

A source told Us Weekly magazine: "Elon and Grimes have experienced a lot of ups and downs in their relationship throughout Grimes' pregnancy and have been on and off. Through it all though, they have and will continue to maintain a close friendship.

"Regardless of what happens to them romantically, Elon plans to be a father figure and be involved in the life of his child."

Camera IconElon Musk shared the first pictures of his newborn baby boy with singer Grimes on Twitter on Tuesday, complete with ‘face tattos’. Credit: Elon Musk/Twitter

Meanwhile, the couple have both explained the meaning and pronunciation of their tot's unusual moniker.

X Æ A-12 is Grimes' first child, while Musk has five children with his former wife Justine Wilson. The former couple also had son Nevada together but he died of sudden infant death syndrome at 10 weeks in 2002.